nohup ./crawler.py 1 1000000 &
nohup ./crawler.py 1000001 2000000 &
nohup ./crawler.py 2000001 3000000 &
nohup ./crawler.py 3000001 4000000 &
nohup ./crawler.py 4000001 5000000 &
nohup ./crawler.py 5000001 6000000 &
nohup ./crawler.py 6000001 7000000 &
